A novel water treatment agent HPMA with low phosphorus content was prepared by solution polymerization with the raw materials of maleic anhydride(MA),H2O2 and sodium phosphate.

• 以马来酸酐(MA)、双氧水、次磷酸盐为原料,在催化剂的作用下,采用水溶液聚合法,合成出低膦水解聚马来酸酐(HPMA)。